Cash register



July 17, 192s',

s. ARToN CSH REGISTER Filed May 15. 1922 8 Sheets-Sheet July 17, 1928. Y

s. ARToN c :gsa REGISTER 8 Sheets-Sheet 6 K AFiled Mayls. 1922 www.

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July 17, 1928;

S. ARTON cAsH REGISTER Filed May *15, 1922 8 sheets-sheet v July 17, 1928.

S. ARTON cAsH REGISTERv Filed May 15, 1922 a sheds-,sheet e Patented daily` il SVEN aaron, yoir oHIoAGo,` ILLINoIs.

elisir4 REGISTER.

i "Application filed May y1K5,y

i l This` ini-entionrelates to account-ing inaychinos and is of thegeneral class knoivn as ten-keyy machines 'wherein jtlietotalizer ora carriage, intermeoj te the ktotalizer and actuating` keys, is' movable step by step between successive operations -ofthe keysiii order to effect the successive dii'ieifential',settingv ot dil'lerent denominational elements of the tofio talizer or accounting device. One ofthe ,chief characteristics of thepresjent. machine yasy distinguishing it troni prior ten-key kinai chines is the application ot the ten-key principle torcash registers inaivaythat makesy these tenjkeys successively serve as value, f clerks, department, classification, or` other.y

special keysfA The motion of the traveling carriage underk the control of the escapeinentinechanisinl controls'the position ot a long.indicatingdruim extending' over the jk'e'ys and carrying indicia which indicate the y Ifunction of cachkcyin the dillerent positionsof the traveling carriage. It is, there-` `v loieya main object otthisfinvention to' provide acashv registerivith ten keys, which are vserviceable not yonly tor ydeterniininp,` the values entered in ajtotalizer, but' also 'for determining the' .classification `of transactions, 'such as cash; paid out Aor L'credit, and such 'tunctions asregistermg the initial designating' the clerk whofinade `the transaction. or the classoit goodssold.k f Itis also the ,purpose of the invention to provide a Lkey mechanism sofi-elated yto the accounting devices Which are actnatedby the keys, that one such. accounting 'device will be operated iiponthe downward stroke Aot'the key, and

another accounting device will be operated *stroke thel key.

in a corresponding manner iipon the return Itis alsoan object ottlie'inventionA to provide transaction, deiiiartment, clerks. and a speci al counters, which automatically bef come operative only when the traveling carriaejev is .in a position ivliei'etlie keys become n y "anisni viewed from theiright `with its casing omitted.. v f n Fig'.- 9 -is also a detail viewed from' the eliective for 'entering' l such special information in regard to a transaction.

` 'i further purpose ot the. invention isA to provide normally inactive y'keys-the depres- 4sion ot `which Will have no effect on the accounting or `registeringmechanisms, but

tial preliminary operationof another part rof the machine. It ,isy also an object of. the

invention to: provide certain specific iininn' mechanismssuch-as both a drawer coni922.` semi No. 560,967.

trolled and separatelycontrolled release tor "the impression taking means, an improved check or receipt cuttingdevice. and an iinproved means iorresetting the type Wheels.

Further im provem ents to which the ji nvention relatesaremeans for controlling carryiiigniechanism `for atota'lizer whereby the dili'eient denominationalelements of ,the carrying.mechanism are moved successively into active position as'tlietotalizer moves .from fright torleft, and'its denominational elements aregrendered successively operative with respecttoy the controlling keys. It .is a general objectof the invention to lighten the action of tliefmachine by having nearly all oft the ii'iechanisinl normally inactive and rendering operative such "mechanism as must bei moifedinorder to entera transaction..only according to the movements ofthe carriageivith respect to the (controlling keys. fTlie objects otthe inventionYV are accomplished by theidevice shownin 'thef accompanying drawings, in which#` kFigure l is aplan' view of the machine With the casing removed,` the printing mechanism and certain indicators omitted, and other Vparts vbroken. away clearness.

Figik 2 is aitront vievv of 'the machine; but .with ythe cabinet and most of the keys, and

certain ,other parts shown broken away in order to clearly illiistrateas much as possible the ressential parts ofthe 'operating mechanisni.`l n

' Fig'. is a vtransverse vertical 'sectional vieiv taken on tlievlineS- oit Figure 1.

Figurest and f 5 are details'y ink side elevation respectively illustrating the normal and y, moved positionfot the operating keys and differential mechanism controlled? thereby.

y, Figures (i and 7 arev respectively k:rear vicvvs of the mechanism shown' in F igures lland y l i.

5 Fig. 8 is anend view of the printing mechkot Fig. 2, but

f v @4.57755110., P'ATENT QFFICE,

for the sake of'` right of Fig. 2, showing thevoperating 'hantions performed.

Fig. 10 is another detail viewed from the y l right of Fig. 2,1and illustrates the method ot n Y y resettingthertypeiivheels to Zero position.

provements in the receipt and detail vprint-f'l n n tratingthe shutter action tor .theindicators Figures 12 and 13 are respectively details in plan and side elevation of a controlling device which serves to hold out of action kero stops for the indicators when the .latter anism.

lll

lill

Fig. 15 yis a diagram et the lettering on thekey indicating drum.

Fig. 16 is a front view of the drawer keys, also shown in Fig. 14.

Fig. 1T is taken from Fig. 1 and is a plan view of the escapement members.

Fig. 1S is a front elevation of a portion oil the traveling carriage member and is taken from Fig. 2.

Fig. 19 is a front elevation of a fragment of the using showing the amount tendered keys. e

Fig. 20 is a detail view of parts of the key interlock mechanism which isshown in dotted lines in Fig. 2. n

Fig. 21 is a view similar to Figi'. lwith parts omitted and parts shown in ull.

Fig'. 22 is a view similar to Fig. 13 with parts added.

Fig. 23 is taken from Fig. 1 with parts omitted and parts shown in lull. to more clearly show the relationship olf diderent members.

Fig. 24 is taken from 3 omitted and parts shown in full.

Fig. 25 is a view similar to Fig. ingl only a portion ot the parts.

Substantially the entire machine trated in this application for patent in order to make clear the relationship between such with parts 8 showmechanisms which are herein claimed, with` other more or less independent mechanisms which may be useful in cash registers ot diiferent general design. The machine as illustrated comprises indicators and printing devices. and other customary devices. such as counters. etc.. and tor the sake otl clearness of illustration only one totalizing device, although a plurality ol totalizers may he succeisl'ully incorporated in the machine. a set oiI ten controlling keys, a set of tabulator keys in order to save operations of the :cero key of the controlling keys for the purpose of positioningv the traveling carriage as desired, a plurality of cash drawers, and an operating handle for restoring the arriagc to starting position. The machine is keyoperated, that is, a depression of a key does not control the subsequent operation ot the differential mechanism, but serves to directly transmit the desired motion to the totalizer, indicators and type wheels. Preliminary to operation of the controlling keys, the traveling carriage may be set to any desired position by a depression ot one of the tabulator keys. rllhe tot-alizer is pre1'- erably mounted in the traveling carriage,

'flan is illnsmoving Yfrom right to left with the carriage so that itsI different denominational elci'nents successively come into active relationship with the stationary differential mechanism, the higher order elements being operated before the lower order elements. The irulicatorsaml type wheels are also successively set by means of master gears which are slidablc both to left and right upon the lei't hand movement of the totalizer carriage in order to properly set Jfront and rear indicators, and also for successively setting type wheels, and also setting in a subtracting direction the denominational elements `of a change indicating device, which., preliminary to the operation of themachine may have been set in a -tor ard direction according t0 amount tendered. This change indicating device. is, of course, not intended for use upon entering all transactions, but only occasionally when the amount involvedk is larfre enough to cause the clerk to desire to avoid a mental` calculation of the change.

Referring to the drawings, the ten controllng keys 1 serve for differentially setting' the accounting devices, and any special, clerks. departments or other classification in type wheels and indicators. Keys 1 and hibulating keys both serve the function of diflerentally positioning a traveling carriage 3. This carriage supports a tot-alzer 'l, and a change indicator 5. The carriage cani'ed to travel from right to left by a spring motor G, with a geared connection to the rack 7, rigid with the carriage. The denominational elements ot the totalizer 4 and the change indicator 5 aresuccessively set di fi'erentially by a master pinion 8. fixed to a shaft 9, which shaft is differentially rotated through connections with keys 1. Master pinions 10, 1l, and 12 are so connected with the carriage as to he moved in the proper direction for successively coming into coaction with the different denominational indicating and type wheels 13, 14, and l5. A central classification indicator is shown at 16, Fig. 2. and in this figure the escapcment mechanism for determining the motion of the carriage under control ofkeys 1 or 2, is generally indicated by the numeral 1T. The specific construction of the above generally indicated parts of the machine Will now be described.

The keyboard mm' the campement mechanism.

The depression of any one of controlling keys 1 results in the turning of differential shaft 9 a number of degrees, according to the value of the particular key depressed, and in order that these key levers may have a substantially uniform stroke while turning the shaft 9 differentially, they are preferably mounted in two groups, the first six keys to the right, Fig. l, being'y pivotally lll) intermediate gears 73.

Differential nwe/amena The dili'erential mechanism has been generally described in connection with the keyboard, this mechanism consisting principally of the sector gear 27, which is ditierentially movable under the action ot kthe keys 1, gear 2S with which the sector gear meshes, shaft 9 carrying the gear 8 for setting the totalizer elements, and the gear 12 for setting the type wheels. Vhen a key 1 is depressed, shaft 9 is rotated according to the value ot the key, only one key being depressible at a time due to the use of key ari-esters 74.

The differentially movable gear sector is positively limited in action by pawl 75, Figures 4 and 5, which is engaged between the teeth o't a wheel 76 on shalt 9 as the depressed key 1 nears the bottom ot its stroke, at which time yoke 52 depresses the forward end of pawl 75, the pivot 77 ot' the pawl being substantially midway between its ends.

Yoke 52 at the same time operates a lever T8, pivotcd at 79 so that the rear end of the lever engages a pivoted alining device S for the totalizer -t and the change indicator This alining device is in the form olf a toothed bar 8l, the teeth of which project upwardly from the bar so as to be capable ot engagement with star wheels S2, rigid with the intermediate gears 5G on shaft S3. The aliniug device SO is pivotally supported at- 84. It also is pivotally connected with au alining' device 85 for the change indicator. The alining device 85 is slidable along va iXed pin 86 extending through a slot therein. The alining device S5 coacts with the teeth ot intermediate gears 58 for change indicator 5.

The keys 1 and the sector 2T are restored to normal position by spring 8T, Fig. 3, although the keys are also each provided with separate restoring springs 8S, Fig'. 1. The

differential shaft 9 is restored by means of a spring,l S9, one end o which is secured to gear 28, the other end of the spring being secured to the trame of the machine.

lVhen a key 1 is depressed the gear 8 on the differential shaft serves to transmit the motion to the totalizer and to the change indicator, but when the key arrives at the bottom of its stroke it operates the escapement mechanism 17, permitting the carriage 3 to travel one-half a denominational step to the lett, in which position ot the carriage gear S becomes ineffective as to the totalizer and change indicator, but the indicator settingr gears 10 and 11 are then rendered effective with respect to the indicators in groups 13 and 14, Fig. 2. Therefore, upon release of the depressed key the differential shaft 9 is reversel y rotated under the action of springs Si' and 89 to its original setting. Indicator drums are rotated to indicate an amount corresponding `to that which had been received by one the depression of the key.

Indicators.

' change indicator, and then successively serve as clerks keys, transact-ion keys, and if dcsired tor other special purposes. In order to indicate the function of the keys 1 in all the ditl'crent positions of the carriage, a key indicating drum 1S is closely associated with the key heads, and this drum normally held in its zero position by the coiled spring 34. It has a cord connection 43 with the traveling carriage 3 so as to be rotated against the action of spring 34. as the carriage travels "to the left. The drum is lettered for the purposes of the machine, as herein illustrated, in the manner shown in Fig. 15, which represents the drum as it would appear it split longitudinally and iattened out. As shown in this figure the keyindieating drum not only serves to indicate the changing 'function of keys 1, but also their changing denominational value during the operation of the totalizing device..

he indicators comprise value indicating wheels 13 and 111. in two groups for respective reading at the fronty and rear of the machine. At the side of the group of wheels 14, is a clerks initial wheel 90. the transaction indicator 91, and a special indicator 99.. The indicators 13 and 14 are successively set by the `gears 10 and 11. slidably mounted on a square shaft 93, Figures 2 and 3. This shaft is differentially rotated by means of a. geared connection'to shaft 9, comprising the group of gears94, indicated at the left of Fig. 2. The gears 10 and 11 each have grooved hubs 95, which are engaged by forks 96 and 97. The fork`96 is rigid with of the totalizer wheels opon.

' riedfby fa rack 98.. Thisrack is horizontally disposed and moves in' anopposite direc the carriage frame 3, but the fork 97 is cartion to they motion imparted to 'carriage Bioy the rack @7 through the vertical shaft 29,

y escapement mechanism, and the gcaredcnr' nection to thespring holder' f'lhe rack 9S y lis driven' throughk the same connections except thatitis geared to shaft29through" the intermediate gear 99, mesliingwith -,the

x'gear' 100 fast tothe shaft 29.v The gears10 `and 11 slide into engagement With' gears 101 1 and' 101 respectively. yAfter the rcarriage' 3 shifts a halfstep to theleft upon the com! pletionoffa down stroke of a key .1, then uliujnv they retui'n stroke of "the key'` the totalizer and change'indicator are not affect? ed, but the indica-toi drumsv corresponding' to the positionof the gears I10 and 11 are set'according to the .valuefof thelrey Motion is transmitted' to ktheindicator dru'ms rfrom the gears 101 andy .1011', through the p intermediate gears 1024 and 102 respective-p ly 'loose on/shaft 103, Fig.' 3.

1.02 and "102r1nesh "iespectively With kthe gears 104e` and 104;, kfast to the indicator drums. The indicator y*drums are normally locked against rotation spring actuated detents 105, but "ivlienany one drum is being rotated itsfrespective detent 105` is diseiigaged Aby a cam 106, Figures 12 and 13.

7 One such cam is movable With each ofthe The indicators and 14k ,ai'ef'successively actuated, and then the gears 10 and 11 come' into vposition for operatingthe clerks indicatorsfQO.' 'After these indicators arev set*y the'. gear 1.1 successively comes intop position for operating `the 'transaction' kindicator.,l 91

and the special,l 'indicator-92.y rrllie central. transaction indicator 16 receives motion from ythe 'gear 10 through one of the"v gears 101,

gear 107,1`r shaft -10,8, and gears "109 to 112, Figii.

The lashll'for this indicator is operated by'a cutawaydislr 11a, Fig; 11, rigid with kthe gear,L 111. 'y This serves to permita reading "of indicator 16 during its first 'f four Lpositions, but thereafter-the flash or shield 113 coversltheindicator, in any one lof 'its five remaining positions, While the corresponding indicator 91'in the clerks group to tlre.iiglit,`Fig. 2, will continue to indicate on the clerlrs side of the register..

Printing mechanism. A,

The `gear l12 by which differential motion is transmitted to the different typecwheelsiii succession vrotates ivitlfi the differential shaft 9.y The Agear 12 is also slidable' along the square/end of shaft 91in`orde`r to operate the i different type Wheels. rFor this"y purpose the hub of gear 12 isgrooved toreceive a fork 300, Figs. land r2.y This fork 'is carriedby V' fraclr 801,11*1 ig. 2, which rack shifted the desired extent and inthe proper direction upon operations ofescapementl?, by a pinshifting tlietotalizer carriage and'also for shifting the master pinions 10 and 11 into positions for successively operating the diff" ferent indicating drums. l

The printing mechanism consistsof tivo sctsof type Wheels'l' and 15, Fig. 8,l each Y ion 302,A fast to the vertical shaft 29, Which, `as previously described, is also utilized for receiving motion from the gear. 12 Vrthrough one Vof the rintermediate gears y 114C, These two sets of type fivheels coacty with the ried ron a frame 119, Wliichfis mounted to oscillate, around a shaft 120.'Y This frame is. urgedto rockin the properdirection to- Vplatens 115;and'116 respectively, for kmak# ing-impress-ions yon receipt l paper 117, and a detail strip V118. The type wheelsare ca'i.-

talkzean impressionby'the spring 121,` but *is normally locked against 4motion by the .t

arm 122, projecting over a rod-123,"eXten`d-'* ing between side members of frame 119fan'dV 15.` yThis arm ispivotod to the frame of the machine at 124, and itsV rear end is norit is connected bynlinlrs 126, Fig.14:,with

'90 inallyyengaged by a lat-ch 125. This latch `inay`, of course, be released by'any auto` rmatic means connectedvvith the operating mechanism of the register, but as illustratedy cash :drawer keysl 127.k throughgthe bell- .c'ranls 128 and 129,"ada1'3ted to independentf 'I ly oscillateshaft 130,',Whiclrcarries anvarm 131 pivoted to theloiverend of latch 125.'H

One extralr'ey siniilarto the` drawerleys provided as `shown'in the'detail atlthe right of Fig. 14, inorder 'to' vpermitth'e release of the impression taking ineansinde- "pendently of therelea-se of one-of tlie'trvo cash drawers With which thefn'iachine is shown as provided. 'f

' The.l strip' of yletaily paper 118,

' rfed' fromasupplyroll 132, pasttheplaten' 116 and tothe receiving roll 13?),by means of a pair of feed'frolls'l and 135. Roll, 1134 carries ratchet136, Which is engaged by a p21-W115i?, carried by the segment gear 119. lOn the yreturn stroke ofthe segment The ,check vor receipt paper is led yfrom a siippl'yroll1j39 through the guide 140, and' passingloelow the platen 115 between feed.

rollers 111 land 142, and then outwardly through apertures in the check' cutting device 143. rlhe idle feed roller 142 is carried by an arm 1114, rand isk heldin engagement'- With `the kfeed rroller v1111 with the desired l pressure by means of spring 1115. Vlrlhe throw-out device 116 for the cheek feeding latches 157.

' a slotted arm`168.

mechanism coacts with the arm 144. The feed roller 141 is driven by means of the geared connect-ion 147 with sector gear 119. This gearing is idle on the up stroke of the sector 119 due to the ratchet connection 148 shown in Fig. 2, and comprises a spring pressed plunger in feed roller 111, and coacts with a notched collar on oneef the gears 147. Upon the downstroke of this sector the check is fed the requireddistance.

.The check is cut from the strip by an oscillating hollow cylinder 119, equipped with theknifeedge 159. An arm 151 extends rearwardly from cylinder 149, and at its reark end is engaged by an oscillating arm 152, having a pin and slot connection with a gear 153ineshing with the gear 147. Thus, as gear 153 is oscillated the arm 1514is operated to first permitthe check paper to be fed through the check cutting, device, and then.

under the action of spring 151the arm 151 rocks downwardly causing the. cutting of ther check by knife 150.

Uash drawers.

Cash drawers 155, shown in Fig. 14, are released by the separate ke s 127, these each having connections through bell-cranks.128` rods 126, and bell-,cranks 1:29` with links 156 connected with the spring retained drawer n When one of these latches is lifted by the depression of a key 127, the corresponding drawer is pushed forwardly by the spring-tmerated bell-crank lever 1.58, having a roller 159 for engaging the rear end of the drawer.

Resto/ring mechanism.

change indicator 5 and the key indicator 18,

and for resetting the type wheels. This operating handle is in theform of a lever ivoted in a bearing 161 and ricid with a P d a segment gear 162, having a depending arm 163, which is connected by means ofv a link 16st with a horizontally disposed lever 165, pivoted to the machine frame at 1.67 and also pivotally connected at its opposite end with- A pin 169 on gear 31 extends through this slot. Accordingly, when this gear rotates tothe right,F ig. 1, upon the left hand motion of carriagey 3, the pin idly rides along the slot in arm 168,

but when operating handle 160 is drawn downwardly to4 complete an operation of the machine, the pin 169 is engaged by the closed v end 170 of arm 168and thev gear is restored to its normal position, thus revcrsely moving the carriage back to its cxtreme right hand Vposition andthrough the gear 3() rewinding spring motor 6.

The same downward motion of operating handle 160 serves to restore the trame upon which the two sets of gears 15, Fig. 8, are

mounted.r This is effected by means ofthe segment gear 119 and the remaining end' member 173 of this framek is shown in Fig. 10. This figure shows that the shaft 174 which vsupports the intermediate gears 114 between the two sets of type wheels 15, supports a pinion 175. This pinion is loose onV the shaft, but carries a disk 176, upon` which is mounted a pawl 177 forengagement with a notched disk 178, fast to shaft 174. The pinion 175 meshes with a stationary curved rack 179, and when the type wheel frameswings upwardly at the time of taking an impression, the pawl 177y idly rolls over vthe disk 178, but on the restoring motion of the printing frame the pawl engages the disk and rotates shaft 171m the proper direction so that shoulders 180 on the shaft, Fig. 8,y engage pawls 181 onthe intermediate. gears 114` thus restoring these gears to their original position, of type wheels y15.

The change indicator and the remaining indicators exccpt'the key indicator 18 are restored to normal position upon the upward motion of handle 160, which `does not take kplace until the entry of another transaction into the machine. The change indicator 18 is restored to normal position by the spring 34, Fig. 1, upon the restoring motion of carriage 3, which then allows the cord 43 to be wound upon the change indicator as it is permitted to pass around stationary pulley 182.

Resetting the change indicator is eiiected n by a gear 183, ig. 9, meshing with sector gear 162. This gear carries a pawl 184,

which idly rides over a notched disk 185,y

pinned to shaft 186 upon the rdownward motion of handle 160, but when this handle kis lifted preliminary to. an entry of another transaction the pawl engages the notched disk 185, rotating shaft `1861160 the left. This shaft, Fig.l Q, has asliding coupling 187 with the coaxial shaft 188, which shaft looselv supports the intermediate gearsr58, Fig. these gears meshing with the gears 57 which carry the numbered drums of the change indicator. When shaft 186 is thus. rotatedr to the left a pin 189 on` shaft 188 rides out of a. notch in a fixed disk190, causing the shaftl 188 to shift slightly to the right, Fig. 2,

and thereby the two sets 1,617,510, "bringing projecting pinsi'191thereoii into).

lten dollar bill andthe r.clerk desires to have ithe change indicator show the amount oi thefpatli of ypins 192, Fig'.L 3, on the interw mediate gears 58. VBy thiseiigageiiient of the pins the gearsy 58 and change indicator drums 'are restored tozero position., l c

The carryingdevices,60 tor tliechange inn dicator are, during the resetting operation,

. to itsiippei normal position, indicated in n Fig. 9( Otherwise the machine will remain kby the bar 66, Fig. 3..

, stroke ot a r riage.

heldout ot' engagen'ient'Withthe gears 57 This bar also serves', when the carriage is in its extreme right hand position, to place Zero'stops 193finto kthe pathsotl pins 194l'toitli'e Agears 58, thus preventing yoverthrow onfvtho rcsetting opere ation. 1 i y f 'This r vsettiiigot the change indicator does not eilect the ysetting rot the totalizery 4,k

sincev the onlyr coiinec ti on between the total-.

izer andthe clriange indicatoris the dii.y ltereiitial gear S,\vhich isy normally inactive, kkwith respect to both ottliese accounting dey vices.

Special warmers.

Villientlie carriage S'has been moved toy the-lett l'ar enough to make the diii'creiitialmechanism" -ii'liective f with j respect to the ytransaction indicators, thei'iglit hand traine member of this carriage engages a be l? crank lever 195, Fig. 1 thus' drawing a rod 196 rearwardly aiidcansiiig a yoke 197110 ivhiclithis rod is coiiiiectechto engage connter, actuating paivls 198, 3, rrendering these pawls'eii'ective with respect to the special counters 199. One'ot these counters will, therefore, be operated uponthe down key 1 in this position ot the can` Y Operation.

Preliminary to tlie. operation oit the keysf 1 and E2 in entering a' transaction, its is'iiecessaryr forthe operator to restore the indicators by moving the operating handlelGO locked by latch 203(Figsi1 and 2) ymovable with the operating handlefandtlie gears 30` ,and 31 couldnot rotate undeivthe action of spring since `theslotted link' 168, Fig. 1by

engagement with the pinv 169 on geargBl prevents' such action. The down motion ot the handle also cannot he effected unless the printing mechanism has beeiifoperated to register the previous transaction, as'tlie latch k.122, Fig. 8, in its normal position, serves as a stop, its forward end being inthe path olf slideill, which isjconiiected with the sector gear 162,' rigid with the. operating 4handle 160. By the restoring motion of the' handle, carriage 3 is shitte'd rto normal positionand the key indicator 18 is peri'iiittcd 'to reversely rotate to its normal'positioii under the action otspring 34. Likewise, all of the remaining indicatorsy and type Wheels are reset toyzero position 4as previously described v'in detail. i y c y, v.

to Vindicate f ten dollars; 1 presses a key 2 according to the largest `dei nominational value of the sale.

into the change indicator V5 `Assuming that` thev rcustomer tendered a change due` the customer, he sets they change indicator througlione ot the lcvcrsxl-O, Fig.

vrvalue oi all'ot'the, keys 1in this denomina vtional 'position o'lthc carriage. 'the depression oi'? one oit tlie'keys 1, the

Then, iipoii sector gcar?, Figures` 4 and 5, is forced downwardly according 'to the value of the key', thus rotating gear 8,Fig.'1, and setting ktheaniount in the corresponding wheels 'oll the totalizer `4, change indicator' .5, through Then he de-y theiry respective connections lwith the diler-` i ential shaift 9.v At kthe ycompletion of the .downward stroke ot one, oi the keys 1 opf. @rati ig lever 49 isyrockedto disengage pawlv 48ll`i troni the escapenient Wheel45,and` bring it into the path ot a tooth on escape# f nient wheel 44-,l1`igzv 7., Thisxperiiiits the.

carriage to shitt f one-haltIk denominational step to ,the right. Thcmupoiithe np stroke voi the depressed key, the gears 1() and 11 become el'iaective'i'or setting the value of the keynito one ot kthedruins of each of the rsets otindicatoi'sland 14. After this is accomplished and the key 1 aiidisector 27 arrive at their Ioriginal positions, `a pin 200,

Fica 7. on sector 27 enO'aOes a ivoted arm t: f 7 C 2:5 f

EZOljthus causing a pin Q02 at the opposite endof the arm to engage thejescapeiiient j lever 49, pressing 'this lever back to its original position, thepa'wl `49 becoming disengaged ironi escapemeiit Wheel 44 and again engaged with escapemeiit ivheel45. This downward motion ot thepawl permits the y carriage to move to the right, Fig, 1, a furH ther one-halty step. The diiierential gear 28', then is in position to engage the Wheels of. the totalizer 4 and change indicator 5 of next lower order. After the amount of' the transactionis lin this manner entered into the totalizer and atlthe saine time entered inA a subtracting direction, the key indicator drum 18 next indirai-es the clerks letters, corresponding to ,each'fof the keys 1, aiidl these keys-are now .veg ttor i registering and indicating the initial oit the clerkjwlio had charge of the transaction. Thekeys 1 may then becomeV successively eti'ec'tive tor the Work 'of entering the class oi the transaction orfany de- "sired special iiiitorniation. Next the drawer f key 1127 ris depressedr thus releasing the drawer and eliectiiig they detailed impresvsion upon the record and receipt strips. Finally the operating handle is depressed and thereby restoring the carriage to its original position, where the change indicator may be read.

I claim:

1. A machine of the class described comprising accounting and imlicating devices, an operating mechanism tor said devices, a set ol keys 'tor controlling said operating mechanism, Said accounting and indicating devices, operating mechanism and keys bcing so arranged that successive depression of said keys results in changing' the denominational value olf the entry and likewise changing from on-e class et' entry to another, and an indicator extending across all the keys and having a step-li y-step movement to successively indicate the changing vaine and function of 'the keys.

2. A machine oi? the class described comprising accounting and indicating devices, an operating mechanism vtor said devices, a setol" keys lor controlling said operating mechanism, said accounting and indicating devices, operating mechanism and keys be- `ing so arranged that successive depression 0f said keys results in changing the dcnominational value oli' the entry and likewise changing 'trom one class ol entry to another, and a rotary indicator extending across all the key.' and having a step-hy-sv moven'ient to successively indicate the chai ing Value and 'function ot' the keys.

3. A machine of the class described coinprising accounting, recording, and indieniing mechanisn'is, a single set of controlling keys for all mechanisms, means operable upon successive operations ot said keys for successively bringing about coaction between said keys and diilerent denominational elements o'l one ot said mechanisms and then coaction between said keys and another ot said mechanisms, and a set ol tabulating keys controlling said means to determine n'ithwvhich ot said mechanisms the controlling keys are. iirst ci'mncctcd.

al. A machine ot the class described comprising. an accounting mechanism, an indicating mechanism, a set oi' ien keys which operate said accounting and indi rating mechanisms, and means il'or alternately connecting said keys with said accounting and `indicating mechanisms whereby one of said iechanisins is operated upon the down vstroke ot' a. key, and the other o'l said mechanisms is operated npon the return stroke of the key.

A machine ol the class described compi ng a set olf lront. and a set. ol rear indicators, a .set ol controlling keys, means 'for successireiy connecting keys with corresponding iinlicators ol each set of indicators in sncccsiiyc operations of the keys, said means compri Ing indicator actuators whicht are slidahle in opposite directions into suc e coaction with different indicators of oi' indicators.

S V E N' A RTO N. 

